Patents by Inventor Leopold Grillberger

Leopold Grillberger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110151512
    Abstract: The present invention relates to oligopeptide-free cell culture media comprising at least 0.5 mg/L of a polyamine and to methods for cultivating cells in said oligopeptide-free cell culture media comprising at least 0.5 mg/L of a polyamine. The invention also relates to methods for expressing at least one protein in a medium comprising at least 0.5 mg/L of a polyamine and to methods for producing at least one virus in a medium comprising at least 0.5 mg/L of a polyamine.
    Type: Application
    Filed: February 25, 2011
    Publication date: June 23, 2011
    Applicants: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Leopold Grillberger, Manfred Reiter, Wolfgang Mundt, Artur Mitterer
  • Patent number: 7955833
    Abstract: The present invention relates to animal protein free cell culture media comprising a combination of non-animal derived peptides derived from soy hydrolysate and yeast hydrolysate. The invention also provides an animal protein free culture process, wherein cells are cultivated, propagated and passaged without animal-derived components. This process is useful for cultivating cells, such as recombinant cells or cells infected with a virus, and for production biological products by cell culture processes under conditions devoid of animal protein components.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: June 7, 2011
    Assignees: Baxter International Inc., Baxter Healthcare, S.A.
    Inventors: Manfred Reiter, Wolfgang Mundt, Leopold Grillberger, Barbara Kraus
  • Publication number: 20110086411
    Abstract: Described herein is a chemostat-like continuous cell culture system that combines certain advantages of perfusion open systems and chemostat open systems to improve the culturing of mammalian cells, e.g., genetically modified cells, particularly in serum-free or chemically-defined media. The continuous culture system described herein involves culturing mammalian cells in a continuous cell culture system, which comprises a cell retention device, wherein the cell culture system has a dilution rate (D) of less than about 2 d?1, and a cell density of less than about 2×107 cell/mL.
    Type: Application
    Filed: July 30, 2010
    Publication date: April 14, 2011
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Leopold Grillberger, Manfred Reiter, Daniel Fleischanderl
  • Publication number: 20110086413
    Abstract: The present invention provides culture mediums that are useful for the expression of ADAMTS proteins, such as ADAMTS13. Methods for the expression and purification of ADAMTS proteins are also provided. In some embodiments, the mediums and methods of the invention are useful for the expression of ADAMTS proteins having high specific activities. Also provided are ADAMTS, e.g., ADAMTS13, protein compositions with high specific activities, which are expressed and purified according to the methods provided herein.
    Type: Application
    Filed: July 30, 2010
    Publication date: April 14, 2011
    Applicants: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Leopold GRILLBERGER, Alexandra Spenger, Meinhard Hasslacher, Rana Grillberger, Manfred Reiter
  • Publication number: 20110081722
    Abstract: The present invention relates to animal protein-free cell culture media comprising polyamines and a plant- and/or yeast-derived hydrolysate. The invention also relates to animal protein-free culturing processes, wherein cells can be cultivated, propagated and passaged without adding supplementary animal proteins in the culture medium. These processes are useful in cultivating cells, such as recombinant cells or cells infected with a virus, and for producing biological products by cell culture processes.
    Type: Application
    Filed: May 17, 2010
    Publication date: April 7, 2011
    Applicants: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Leopold Grillberger, Manfred Reiter, Wolfgang Mundt, Friedrich Dorner
  • Publication number: 20110081680
    Abstract: The present invention relates to animal protein-free cell culture media comprising polyamines and a plant- and/or yeast-derived hydrolysate. The invention also relates to animal protein-free culturing processes, wherein cells can be cultivated, propagated and passaged without adding supplementary animal proteins in the culture medium. These processes are useful in cultivating cells, such as recombinant cells or cells infected with a virus, and for producing biological products by cell culture processes.
    Type: Application
    Filed: December 10, 2010
    Publication date: April 7, 2011
    Applicants: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Leopold Grillberger, Manfred Reiter, Wolfgang Mundt, Friedrich Dorner
  • Publication number: 20110076719
    Abstract: The present invention relates to recombinant furin (rFurin) and methods for producing rFurin. More specifically, the invention relates to substantially animal protein-free rFurin and methods for producing substantially animal protein-free rFurin.
    Type: Application
    Filed: December 3, 2010
    Publication date: March 31, 2011
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Barbara Plaimauer, Simone Von Fircks, Leopold Grillberger, Meinhard Hasslacher, Roland Geyer, Artur Mitterer, Manfred Reiter
  • Publication number: 20100239606
    Abstract: The present invention provides a method for the production of a virus. The method includes providing a host cell that has been infected by the virus and cultivating the infected host cell at two different temperatures. The virus produced by the cultivation steps is subsequently collected. By using the dual temperature cultivation process, high titer and improved purity can be obtained.
    Type: Application
    Filed: April 30, 2008
    Publication date: September 23, 2010
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Manfred Reiter, Leopold Grillberger, Wolfgang Mundt
  • Publication number: 20100239609
    Abstract: The present invention provides a method for purification of a virus or virus antigen comprising providing a virus preparation and centrifugation of said virus preparation in a gradient of a sugar established by the addition of two or more buffered sugar layers of different concentration. The method leads to higher yields and reduces unwanted aggregation of the virus or virus antigen by increasing the volume of the peak pool.
    Type: Application
    Filed: April 30, 2008
    Publication date: September 23, 2010
    Applicants: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Manfred Reiter, Leopold Grillberger, Wolfgang Mundt, Artur Mitterer, Horst Schafhauser
  • Publication number: 20090181423
    Abstract: The present invention relates to recombinant furin (rFurin) and methods for producing rFurin. More specifically, the invention relates to substantially animal protein-free rFurin and methods for producing substantially animal protein-free rFurin.
    Type: Application
    Filed: December 19, 2008
    Publication date: July 16, 2009
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE SA
    Inventors: BARBARA PLAIMAUER, Simone Von Fircks, Leopold Grillberger, Meinhard Hasslacher, Roland Geyer, Artur Mitterer, Manfred Reiter
  • Publication number: 20080286307
    Abstract: The present invention provides a method for the production of a virus. The method includes providing a host cell that has been infected by the virus and cultivating the infected host cell at two different temperatures. The virus produced by the cultivation steps is subsequently collected. By using the dual temperature cultivation process, high titer and improved purity can be obtained.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 20, 2008
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Manfred Reiter, Leopold Grillberger, Wolfgang Mundt
  • Publication number: 20080274138
    Abstract: The present invention provides a method for purification of a virus or virus antigen comprising providing a virus preparation and centrifugation of said virus preparation in a gradient of a sugar established by the addition of two or more buffered sugar layers of different concentration. The method leads to higher yields and reduces unwanted aggregation of the virus or virus antigen by increasing the volume of the peak pool.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 6, 2008
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Manfred Reiter, Leopold Grillberger, Wolfgang Mundt, Artur Mitterer, Horst Schafhauser
  • Publication number: 20080182297
    Abstract: A medium is described for the protein-free and serum-free cultivation of cells, especially mammalian cells, whereby the medium contains a proportion of soy hydrolysate.
    Type: Application
    Filed: August 20, 2007
    Publication date: July 31, 2008
    Applicant: Baxter Aktiengesellschaft
    Inventors: Manfred Reiter, Wolfgang Mundt, Friedrich Dorner, Leopold Grillberger, Artur Mitterer
  • Publication number: 20080064105
    Abstract: The present invention relates to animal protein-free cell culture media comprising polyamines and a plant- and/or yeast-derived hydrolysate. The invention also relates to animal protein-free culturing processes, wherein cells can be cultivated, propagated and passaged without adding supplementary animal proteins in the culture medium. These processes are useful in cultivating cells, such as recombinant cells or cells infected with a virus, and for producing biological products by cell culture processes.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 13, 2008
    Applicant: Baxter Healthcare Corporation
    Inventors: Leopold Grillberger, Manfred Reiter, Wolfgang Mundt, Friedrich Dorner
  • Publication number: 20080064080
    Abstract: The present invention relates to animal protein-free cell culture media comprising polyamines and a plant- and/or yeast-derived hydrolysate. The invention also relates to animal protein-free culturing processes, wherein cells can be cultivated, propagated and passaged without adding supplementary animal proteins in the culture medium. These processes are useful in cultivating cells, such as recombinant cells or cells infected with a virus, and for producing biological products by cell culture processes.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 13, 2008
    Applicant: Baxter Healthcare Corporation
    Inventors: Leopold Grillberger, Manfred Reiter, Wolfgang Mundt, Friedrich Dorner
  • Publication number: 20080009040
    Abstract: The present invention relates to animal protein-free cell culture media comprising polyamines and a plant- and/or yeast-derived hydrolysate. The invention also relates to animal protein-free culturing processes, wherein cells can be cultivated, propagated and passaged without adding supplementary animal proteins in the culture medium. These processes are useful in cultivating cells, such as recombinant cells or cells infected with a virus, and for producing biological products by cell culture processes.
    Type: Application
    Filed: September 20, 2007
    Publication date: January 10, 2008
    Applicant: Baxter Healthcare Corporation
    Inventors: Leopold Grillberger, Manfred Reiter, Wolfgang Mundt, Friedrich Dorner
  • Publication number: 20070212770
    Abstract: The present invention relates to oligopeptide-free cell culture media comprising at least 0.5 mg/L of a polyamine and to methods for cultivating cells in said oligopeptide-free cell culture media comprising at least 0.5 mg/L of a polyamine. The invention also relates to methods for expressing at least one protein in a medium comprising at least 0.5 mg/L of a polyamine and to methods for producing at least one virus in a medium comprising at least 0.5 mg/L of a polyamine.
    Type: Application
    Filed: January 3, 2007
    Publication date: September 13, 2007
    Applicants: Baxter International Inc., Baxter Healthcare, S.A.
    Inventors: Leopold Grillberger, Manfred Reiter, Wolfgang Mundt, Artur Mitterer
  • Publication number: 20060094104
    Abstract: The present invention relates to animal protein-free cell culture media comprising polyamines and a plant and/or yeast-derived hydrolysate. The invention also relates to animal protein-free culturing processes, wherein cells can be cultivated, propagated and passaged without adding supplementary animal proteins in the culture medium. These processes are useful in cultivating cells, such as recombinant cells or cells infected with a virus, and for producing biological products by cell culture processes.
    Type: Application
    Filed: October 29, 2004
    Publication date: May 4, 2006
    Inventors: Leopold Grillberger, Manfred Reiter, Wolfgang Mundt, Friedrich Dorner
  • Publication number: 20040077086
    Abstract: The present invention relates to animal protein free cell culture media comprising a combination of non-animal derived peptides derived from soy hydrolysate and yeast hydrolysate. The invention also provides an animal protein free culture process, wherein cells are cultivated, propagated and passaged without animal-derived components. This process is useful for cultivating cells, such as recombinant cells or cells infected with a virus, and for production biological products by cell culture processes under conditions devoid of animal protein components.
    Type: Application
    Filed: July 8, 2003
    Publication date: April 22, 2004
    Inventors: Manfred Reiter, Wolfgang Mundt, Leopold Grillberger, Barbara Kraus
  • Publication number: 20030203448
    Abstract: A medium is described for the protein-free and serum-free cultivation of cells, especially mammalian cells, whereby the medium contains a proportion of soy hydrolysate.
    Type: Application
    Filed: April 1, 2003
    Publication date: October 30, 2003
    Inventors: Manfred Reiter, Wolfgang Mundt, Friedrich Dorner, Leopold Grillberger, Artur Mitterer